|  | 1922 USSR formed by Soviet states 1939 - 1945 World War II 1945 Atomic bomb detonated (Hiroshima) 1950 Korean War begins 1964 - 1973 Vietnam War | 1895 Marconi invents wireless telegraphy 1899 Boer War begins 1903 Wright brothers 1st plane flight 1912 Titanic sinks on maiden voyage 1914 - 1918 World War I | 1830 French Revolution 1837 Queen Victoria assumes throne 1854 Crimean War with Russia 1869 Opening of Suez Canal 1871 Franco - Prussian War | 
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|  |  |  |  |  | Samuel DEAN b.1829 Kirk Ireton, England d.1909 Derby, England |  | ||
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|  |  |  | Samuel DEAN b.1863 Great Gate, Staffordshire d.1935 Derbyshire |  | Alice SLATER b.1822 d.1901 |  | ||
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|  |  | Wilfred Samuel DEAN b.1893 St Werburgh's Ch, Derby d.1978 Ashbourne, England | ||||||
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|  | Neville Samuel DEAN b.1921 d. |  |  | Catherine Anna NEWBY b.1856 Messing, Essex, England d.1931 | ||||
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|  | Agnes DEAN b.1927 d. |  |  | |||||
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|  | Lancelot William DEAN b.1938 Derbyshire, England d. |  | ||||||
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|  |  | Marien BROWN b.1900 St Werburgh's Ch, Derby d.1980 | ||||||
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